In our preparation, the process was improved. It is extraction instead of distillation with steam. Yield is 88.6%.
我们对此制备过程进行了改进，用萃取法代替水蒸汽蒸馏，产率达88.6%。
ConclusionCompared with steam distillation, the supercritical carbon dioxide extraction showed many advantages, such as short extraction time and high extraction yield.
结论与水蒸汽蒸馏法相比较，超临界萃取法具有萃取率高、耗时少等优点。
In the new process of synthesis of vanillin with bromine, the bromine in the wastewater is retrieved by steam distillation. As a result, the bromine consumption is reduced.
在溴法合成香兰素新工艺中，用水蒸汽蒸馏法回收萃余相中的溴，降低了溴的消耗定额。
Methods: The volatile oils were extracted by using steam distillation. The components were identified and separated with GC-MS.
方法：采用水蒸气蒸馏法提取白花前胡饮片的挥发油，用GC - MS法对其化学成分进行鉴定。
METHODS The volatile oils were extracted with steam distillation. The components were separated and identified by GC MS and elucidated on the standard mass spectral data.
方法以水蒸汽蒸馏法提取挥发油，分别得到不同样品的挥发油，以气相色谱质谱联用（GC MS）联用技术对其化学成分进行分离和鉴定。
Steam distillation yields a dark orange-brown essential oil with a unique and complex aroma.
蒸汽蒸馏出来的藿香油是一种深棕橘色精油，带有独特而复杂的气味。
The volatile oil was extracted from Cinnamomum wilsonii leaf and twig with the steam distillation and the yield was 1.
采用水蒸气蒸馏法从川桂叶和嫩枝中提取挥发油，出油率分别为1。
In order to study the evaporation of ethanol-gasoline, experimental investigation had been carried out on distillation range and saturated steam pressure with different ethanol content.
考察了乙醇体积分数对乙醇汽油馏程及饱和蒸汽压的影响，对乙醇汽油的蒸发性进行了研究。
The stripped efficiency of the devolatilization stripper with steam distillation reached 70%.
开发的蒸汽汽提脱气釜，脱气效率高达70%。
The volatile oils of Zhulan scented teas and their dhools were extracted with simultaneous steam distillation extract(SDE) as well as analyzed and identified by GC-MS.
采用SDE提取精油，用气-质联用技术，分析了重庆产特级和一级珠兰花茶及其素坯的挥发油化学组成。
MethodsEssential oils were extracted from samples by steam distillation, The chemical constituents were determined by GC-MS with area normalization method.
方法水蒸气蒸馏法提取挥发油后，采用气相色谱-质谱法分析，用峰面积归一法测定成分的相对含量。
Results: Bergapten wasn't extracted by ways of steam-input distillation and distillation of the material mixed with water.
结果：通水蒸汽蒸馏法和共水蒸馏法不能提取出佛手内酯。
RESULTS By GC-MS, 29 volatile compounds in Platycladi Cacumen treated with head-space injection were identified, while 34 volatile compounds identified with steam distillation;
结果 采用顶空进样技术，可鉴定出侧柏叶中29个挥发性化学成分；采用水蒸气蒸馏法可鉴定出34个挥发性化学成分；
RESULTS By GC-MS, 29 volatile compounds in Platycladi Cacumen treated with head-space injection were identified, while 34 volatile compounds identified with steam distillation;
结果 采用顶空进样技术，可鉴定出侧柏叶中29个挥发性化学成分；采用水蒸气蒸馏法可鉴定出34个挥发性化学成分；
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